Six-wheel-truck construction



C. L. ORR

SI'LWHEEL TRUCK CONSTRUCTION May 13, 1930.

Filed Aug. 24, 1928 s Sheets-Sheet 1' May 13, 1930. I c QRR I 1,758,329

SIX-WHEEL TRUCK CONSTRUCTION Filed Aug, 24, 1928 s 'Shets-Sheet 2 3 Sheets-Sheet Z5 c. L. ORR

SIX-WHEEL TRUCK CONSTRUCTION Filed Aug. 24, 1928 l I l l III llllllllirllllllv lllllllll al May 13, 1930.

Patented Riley 13, 1930 v UNITED STATES wea ctAunn- L. ORR, or communes, OHIO, .ASSIGNOH TO THE-BUCKEYE.- s'rnnn easterlies coMrAnY, or COLUMBUS, euro srxs-wnE mi-ravox consraucrrolv This invention relates to car trucks and has issued to me October 26, 1920,.the object being to provide a bolster arrangement for six-wheel trucks which w ll accommodate cars having-a wide and low sill construction. The invention providesa one-piece center or longitudinal bolster which rests-on the trans 1o verse bolsters in such manner as to be eflectually restrained against-lateral movement and provide a support for both the center plate and the side bearing loads. In the accompanying drawings Figurel is a planview of a truck embody; ing the present invention, 1 7

Figure 2 is a side elevation of the same; Figure 3 is a transverse section on the line 33 of Fig. 1; I

Figure 4 is a transverse section '44ofFig.1. 7

. There are two side'frames 1 at each side of the truck withtheir inner ends disposed side by side and connected by an equalizer frame 2 carrying the bearing for the center axle. Each side frame carries a bearing for on the line an end axle and is also provided with an opening to receive an end of a transverse V formed integral with the-bolster or a sepa-- rate plate may be bolted orrivete'd inlplace.

bolster 3, the transverse bolster being supported seated in the opening and being located betwen the center axle and an end axle. v e

a prov des ample strengthand provides space.

Each transverse bolster 3Qis provided with "vertical shoulderst near'its ends-and is: of. a dished formatiomitsends being somewhat higher than its central part andbeing con-. nected therewith by upwardly and outwardly inclined portions 5.

The center or longitudinal bolster 6 is a single integral casting of atgeneral channel form in. transverse section, the central web 7 i i being below and connecting the side members or turned up flanges 8, as will be understood on reference to Figs. '3 and 4, and the bolster is rectangular in outline when viewed in plan. The web 7 includes end members 9, connect ing the side members 8 at the ends thereof, .a

central member 10, also connecting thefside members, and longitudinal members'll connecting the central and end -members, the members 10 and 11 forming a cross which provides a support for'the center plate. ends? of the center bolster rest upon the transverse bolsters 3. and the side members or turned upflanges 8 terminate in downturned hooks l2 whi'cli bear against the outer sides of the transverse bolsters and "thereby pre vent shifting of the center bolster longitudi 'nallyof the truck. 'Thes'edown-turned' ter= minal hooks also hear againstthe' shoulders 4: and thereby aid in preventing relative transverse. movement of the center bolster.

The corners of the center bolster are tapered upwardly and outwardly (Fig.4) on. lines 13- correspon'ding to the inclined end portions 5 of thetransverse bolsters andpads 14: are formed on tapered corners to bear upon the transverse bolsters, azwide support for the centralbolster being thus provided as wen The as an aid to the shoulders 4-i-n preventing transverse movement of the same. Theside members or flanges 8 are,.of course, parallel with the side frames 1 and they rise attheir centers above the side frames,asshown in Fig.2, and are formed with brackets 15 ad- The channel form of the-center bolster between the side members 8 which allows the use of wide center-sills on the car body. The center bolster transmits both the side. bearcommodation of efiicient brake rigging.

Having fully described my invention what I claim as new and desire to secure by Letters Patent, is

, ,1.; Ina six-wheel truck {r combination of two transverse bolsters, aone piece rectangular shapedcenter bolsterhaving its only sup- T port at-its, four..corners which bear on the transverse bolsters. 1

2.; In a six-Wheel 'trucka combination of two transverse'bolsters, springs on which the bolsters are seated,- a: centenbolster mounted 1 be riveted.

onand bearing'at its four cornersonly on the transverse bolsters and securely held in place by locking lugs the center bolsterhaving an integral center plate or a table at the center on which a separable center plate may 7 3, Ina six-wheel truck, the combination of a plurality of transverse bolsters having inclined bearings, and a center bolster seating on the transverse bolsters onlyvatfsaid bearings, and having brackets projecting upward-- ly and outwardly from the side members thereof and forming side bearings.

4. Ina six-wheel truckacombination of two transverse bolsters supporting a center b'olsterpthe centerbolster havinga channel section with the flangesturnedrup at its side edges,saidcenter bolster being provided with a plate-at its middle and bearing on the transverse-bolsters only a'tits four corners.

In asiX-wheel truck, a gconibination of two transverse bolsters supporting afcenter bolster-havinga channel shaped section transversely through its ends, the bearing surfaces atits four corners-tapering upward and outward from their inside edge;

-6. I In a six-wheel, truck t-he combination of truck side frames, two -transverse bolsters carried by the latter; a .re'ctanguglarsshaped center bolster mounted'only lat its-four cor-'- ners on theitransverse -bolsters,- havinga (3811-- ter plate at its middle and side bearingitables' on its outersides; 7 v a I 7. In asiX-wheel truck, the combination. of two transverse bolstershaving upwardly and outwardly "inclined portions near their ends, and a center bolsterhaving 1ts corners tapered. upwardly andresting on said inclined portions of the transverse bolsters: 8. In a siX-wheeltruck, the combination,

of two transverse bolsters havingivertical shoulderszon their outer sides an'd' having upwardly and: outwardly inclined portions Inear their ends, and a center'bolster having 9. In a six-wheel its corners tapered upwardly andrestin'g' on said inclined portions of the transverse bolster and having downturned hooks at its ends "bearing against the outer sides of the trans verse bolsters andagainst the vertical shoulders thereon. I

having relatively elevated sidemembers.

' 10 .1117 a' six-wheeltruck a combination of twoxtransverse bolsterspand a one-piece rectangular shaped center bolsterhaving' four inclined bearings seating, oirthe transverse bolsters, Y I V f 11. Int-a'six wheelg truck a combination of two transverse bolsters, anda'fcenter bol ster; resting thereon and consisting-of crossedf truck, the combination of transverse bolsters having their central portions; depressed relativeto their end por tions, springs-on whichsaid bolsters are" 1 seated and a center bolster jresting only at I its corners on i the transverse "bolsters; and

median; members formed integrally with a rectangular frame-work 12. In a six-wheel truck, side frames, each izi'ng member, the end members of-each side frame. overlapping and being pivotally connected to theends of the equalizing member; each of said end members having a bolster openi'ngtherein, transverse bolsters having theirends arranged in: said openings; and a longitudinal bolster provided with a center plate and having its ends superposed-upon the tops-of the transverse bolsters,

' Intestimony whereof, I have signed this specification. v

s, ,o A E-L. ORR-ff comprising endmembers and a central equal- 

